WF138WA02 is a mid/woofer designed for demanding bass and midrange applications. It works equally well for high-end hi-fi, high quality home theater systems, and top multimedia setups.It is powered by a large 90mm magnet structure that ensures good efficiency and optimal T/S parameters.The large 32mm voice coil ensures high power handling - thermally and mechanicallyThe optimized paper cone ensures wide bandwidth and low distortion. Distortion is further reduced by efficient venting and an alu stabilizing ring.WF138WA02 is a good choice for compact 2-way speaker systems.